The work covered in this section is subject to all of the requirements in the GeneralConditions of the Specifications. Contractor shall coordinate all of the work in this sectionwith all of the trades covered in other sections of the specification to provide a completeand operable system.

2.

EQUIPMENT QUALIFICATION

Products supplied shall be from a single manufacturer that has been continuously involvedin manufacturing of occupancy sensors for a minimum of five (5) years. Mixing ofmanufacturers shall not

be

allowed.

Products shall be manufactured by an ISO 9002 certified manufacturing facility and shallhave defect rate of less than 1/3 of 1%.

IEC 60669-2-1 / CE / Rohs compliant

3.

SYSTEM DESCRIPTION

The objective ofthis section is to ensure the proper installation of the occupancy sensorbased lighting control system so that lighting is turned offautomatically if the daylight setpoint level is reach, or after reasonable time delay when a room or

area is vacated bythelast person to occupy said room or area.

The Occupancy Sensor system shall sense the presence of human activity within thedesired space and fully control the “On” / “Off” function of the lights.

Time Delay settings shall be factory set at 15 minutes and the daylight set point 500 luxfor ceiling mount and 300 lux for wall corner

sensors. This delay selection and thebrightness threshold are based on lamp life vs. energy savings and sensor performance.

To increase energy saving, in manual-on

mode the Walk-Through mode is useful when aroom is momentarily occupied. If the person leaves the room within 30 seconds, thesensor will turn the light off 3 minutes after the initial detection.

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The Trigger Mode is another great feature available onvacancy

sensors. Thistechnology

required to turn lights back on shortly after lights turned off

due to lack of motions. Theoccupant has 30 seconds to be detected and re-trigger the sensor andturn on

lightsautomatically. If no detectionis

noticed within 30 sec, the occupant will need to manuallypress the ON/OFF button to turn lights back ON.

Our sensors can provide audible alerts as a warning before the load turns OFF.

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Audiblealert:

at 1 min, 30 sec, and 10 sec before time delay elapses the motion sensorcan

produce an audible sound for an extinction warning.

With

infrared

commissioning tool ,

lot of parameter

can be customized as the time delay,the daylight set point,

sensor sensitivity,

daylight calibration,thewalk-through

orand there-trigger mode, the

audible alert.

Installer, in accordance with manufacturer’s recommendation, shall determine final sensorlocation. All sensors shall have adjustable factory calibrated sensitivity for maximumperformance.

The installing contractor shall be responsiblefor a complete and functional system inaccordance with all applicable local and national codes.

The occupancy sensor based lighting control shall accommodate all conditions of spaceutilization and all irregular work hours and habits.

Contractor shall warrant all equipment furnished in accordance to this specification to beundamaged, free of defects in materials and workmanship, and in conformance withspecifications. The supplier’s obligation shall include repair or replacement, and testingwithout charge to the owner, all or any parts of equipment which are found to bedamaged, defective or non-conforming and returned to the supplier. The warranty shallcommence upon the owner's acceptance of the project. Warranty on labor shall be for aminimum period of two (2) years.

4.

SUBMITTALS

Manufacturer shall substantiate conformance to this specification by supplying thenecessary documents, performance data and wiring diagrams. Any deviations to thisspecification must be clearly stated by letter and submitted.

sensitivity control has been set.No automatic reduction shall occur in coverage due to the cycling of airconditioner or heating fans.

U.

All sensors shall have readily accessible, user adjustable settings for time delayand sensitivity. Settings shall be located on the sensor (not the control unit) andshall be recessed to limit tampering.

V.

In the event of failure, a bypass manual override shall be provided on each sensor.When bypass is utilized, lighting shall remain on constantly or control shall divertto a

wall switch until sensor is replaced. This control shall be recessed to preventtampering.

W.

All sensors shall provide an LED as a visual means of indication at all times toverify that motion is being detected during both testing and normal operation.

locate and aim sensors in the correctlocation required for complete and proper volumetric coverage within the range ofcoverage(s) of controlled areas per the manufacturer's recommendations. Rooms

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shall have ninety (90) to one hundred (100) percent coverage to completely coverthe controlled area to accommodate all occupancy habits of single or multipleoccupants at any location within the room(s). The locations and quantities of sensorsshown on the drawings are diagrammatic and indicate only the rooms which are tobe provided with sensors. The contractor shall provide additional sensors if requiredto properly and completely cover the respective room.

B.

It is the contractor’s responsibility to arrange a pre-installation meeting withmanufacturer's factory

authorized representative, at owner's facility, to verifyplacement of sensors and installation criteria.

C.

Proper judgment must be exercised in executing the installation so as to ensure thebest possible installation in the available space and to overcome

local difficultiesdue to space limitations or interference of structural components. The contractorshall also provide, at the owner's facility, the training necessary to familiarize theowner's personnel with the operation, use, adjustment, and problem solvingdiagnosis of the occupancy sensing devices and systems